Imagine inventing something that enhanced a hobby that you were passionate about. That's what happened to KPLU music director Nick Francis.

He invented a musical mixing device called The Choppertone. He built it from a MIDI controller kit. And with it, he's able to mix different bits of audio together, to create a whole new sound or remix an old song.

It's the size of a portable keyboard. With the audio pieces selected by Nick stored in the Choppertone's software, he can take this device with him to a coffee shop or other venue and perform a live remix of a song.